EP0127831A2 - Registerregelung in geschlossener Schleife - Google Patents

Registerregelung in geschlossener Schleife Download PDF

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Publication number
EP0127831A2
EP0127831A2 EP84105774A EP84105774A EP0127831A2 EP 0127831 A2 EP0127831 A2 EP 0127831A2 EP 84105774 A EP84105774 A EP 84105774A EP 84105774 A EP84105774 A EP 84105774A EP 0127831 A2 EP0127831 A2 EP 0127831A2
Authority
EP
European Patent Office
Prior art keywords
signal
closed loop
television receiver
substrate
register
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84105774A
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English (en)
French (fr)
Other versions
EP0127831A3 (en
EP0127831B1 (de
Inventor
R. Langdon Wales
H.W. Crowley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEB PRINTING CONTROLS Co
Original Assignee
WEB PRINTING CONTROLS Co
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23988964&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0127831(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by WEB PRINTING CONTROLS Co filed Critical WEB PRINTING CONTROLS Co
Publication of EP0127831A2 publication Critical patent/EP0127831A2/de
Publication of EP0127831A3 publication Critical patent/EP0127831A3/en
Application granted granted Critical
Publication of EP0127831B1 publication Critical patent/EP0127831B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control

Definitions

  • the present invention relates in general to register control for multi-color printing and pertains, more particularly, to a closed-loop register control system used in conjunction with a commercial printing press.
  • Another object of the present invention is to provide an improved close loop register control technique that is substantially superior to prior techniques for obtaining and maintaining register on a printing press or other like process that forms patterns on a substrate.
  • a closed loop register control system used in association with a printing press or the like and comprising a television camera in combination with a strobe light and a solid state imaging device which enables continuous scanning of the sheet web.
  • the television camera (receiver), imaging device and strobe light produce an effective time aperture.
  • the apparatus of this invention also comprises a printing press console having associated therewith a digitizing tablet and a television monitor.
  • the location of the area that is to be examined is defined by the pressman as being important to the specific job -at that moment.
  • the area to be examined may be defined by laying a proof sheet down on the digitizing tablet and recording the coordinates of the area of interest. This allows the pressmann to select one part of the image as important and causes the register mechanism to maintain register in that selected area.
  • Fig. 1 illustrates a magnified view of a typical printed image with the colors depicted in proper relative registry.
  • Tne image is printed by a combination of multiple colors laid down separately. The example that has been selected shows three colors; black, yellow magenta and cyan printed with respect to each other.
  • the printed image in this example is about 20 percent of a full solid and represents a typical density for flesh tones and many lightly colored objects.
  • the density of the dots is shown magnified in Fig. 1.
  • the density of the dots are 133 lines per inch or about 0.006 inch between centers.
  • the dots are oriented at various angles with respect to the paper as noted in Fig. 1. This prevents the eye from detecting the patterns of the dots.
  • Fig. 3 shows, in addition to the digitizing tablet 10, a television monitor 14.
  • the tablet 10 and television monitor 14 may both be of conventional design.
  • Fig. 3 also shows a sample or proof sheet 16 disposed on the electronic digitizing tablet 10 in correct registry with the tablet.
  • the area may be selected, for example, by a capacitive pen or probe 17.
  • the coordinates of this area are then electronically transmitted to the positioning mechanisms associated with the television camera 20.
  • Fig. 2 which snows, in addition to the television camera 20, the positioning mechanism which includes guide members 22 and motor 24.
  • Fig. 2 also illustrates the strobe light 26 and the moving web 27 and associated roller 28.
  • Fig. 2 shows the television camera 20 positioned over an image area 30 of the web 27.
  • the pressman concurrently with the transmission of the coordinates to position the television camera the image also appears locally on the television monitor 14 at the screen 15.
  • the pressman thus has the ability to see quite readily exactly where the register is being monitored and to watch its performance, dynamically, throughout the run.
  • the pressman can also move the image dynamically by watching the television screen and thus pick a slightly different point via the tablet to monitor for register variations before or after the run.
  • the use of a television camera mounted in proximity to the web as illustrated in Fig. 2 has many advantages.
  • the actual image can be watched by the press operator on the screen 15 by comparing the relative positions of various colors with respect to each other. In the past the operator was required to make a visual comparison of a mark on the paper with respect to say an cage of the paper.
  • the non-imaged area can be recorded so that the paper whiteness can be subtracted from the overall image to produce an electronically higher contrast.
  • a color camera or a color scanning wheel the individual colors can be viewed separately by one sensor.
  • the natural image storage techniques of television can be used to perform a great deal of analysis from a single sheet without having to build up an algorithm based upon continuous samples of successive sheets.
  • the television camera is looking at an overall image (rather than a mark on the paper with respect to its location on the machinery) the camera can be more flexible in its location and its height above tne paper, in order to capture the image. It can also have a longer field focus since the technique is to compare relative colors (color-to-color) rather than colors with respect to a fixed location.
  • the method for electronically detecting the registration is to use the television camera to examine a pattern such as shown in Fig. 1 on a moving web with the aio of a strobe light.
  • Fig. 2 shows the moving web 27 along with the television camera and strobe light 26.
  • the pressman controls the camera laterally or adjusts the time delay by means of strobe adjustment, to cause the image to move circumferentially until the pressman finds an area of similar percentage screen as to all colors as shown in Fig. 1. This is an area where all colors are showing.
  • a conventional selid-state imaging device with associated electronics locates a black dot and then systematically scans the area about the dot to locate the yellow magenta and cyan dots (see Fig. 1). If the density of the screen is known and the screen angles are known then the precise centers of all dots can be predicted.
  • the aforementioned electronics ipreferably includes computer or processor means of conventional design.
  • the purpose of the processor then is to compare the locations of the dots with their desired position and to establish X and Y that are lateral and circumferential corrections needed to bring the dots into correct register.
  • the corrections are carried out at the printing press station for each respective color. These correction values are made only with respect to a reference color, in this case, the black dots.
  • the corrections are simply the distance between the theoretical location and the electronically observed position.
  • Fig. 4 shows the television receiver 20 with its output coupling by way of line 39 to the imaging device 40.
  • the imaging device 40 may be of conventional design.
  • the output of this device couples by way of line 41 to the processor 42.
  • the processor 42 is shown schematically broken down into a referenced section 44 in a comparator section 46.
  • the purpose of the processor is to compare the locations of the dots as electronically represented from the imaging.device 40, with a reference magnitude as stored in the reference block 44 of FIG. 4.
  • correction signals on lines 48 and 50 referred to, respectfully, as an X correction and a Y correction.
  • the processor 42 looks at the location of a black dot as represented by some X and Y coordinate and compares this address with an address for say a cyan dot which is also digitally represented. If in making this comparison, it is determined that the dots are not in the desired position as established by reference 44, then the aforementioned correction signals are generated. These correction signals may be coupled to the printing press at each respective station for respective colors to provide for both lateral and circumferential corrections (as in connection with FIG. 2).
EP19840105774 1983-06-02 1984-05-21 Registerregelung in geschlossener Schleife Expired - Lifetime EP0127831B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50033683A 1983-06-02 1983-06-02
US500336 1983-06-02

Publications (3)

Publication Number Publication Date
EP0127831A2 true EP0127831A2 (de) 1984-12-12
EP0127831A3 EP0127831A3 (en) 1985-11-13
EP0127831B1 EP0127831B1 (de) 1990-03-14

Family

ID=23988964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840105774 Expired - Lifetime EP0127831B1 (de) 1983-06-02 1984-05-21 Registerregelung in geschlossener Schleife

Country Status (4)

Country Link
EP (1) EP0127831B1 (de)
JP (1) JPS6068947A (de)
CA (1) CA1230412A (de)
DE (1) DE3481595D1 (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001867A1 (en) * 1987-08-31 1989-03-09 Valtion Teknillinen Tutkimuskeskus Procedure for monitoring printing quality
FR2633062A1 (fr) * 1988-06-21 1989-12-22 Dubuit Mach Procede pour le controle de qualite d'une impression, et machine d'impression mettant en oeuvre un tel procede
US4932320A (en) * 1985-03-08 1990-06-12 Michel Brunetti Method and device for registering colors in an offset rotary press
EP0392814A2 (de) * 1989-04-12 1990-10-17 Tecscan Electronics Ltd Überwachungsapparat für eine Mehrfarbendruckpresse
EP0401691A2 (de) * 1989-06-08 1990-12-12 Bobst S.A. Vorrichtung und Verfahren zum Detektieren von Registermarken in einer Mehrfarbendruckpresse
EP0452700A2 (de) * 1990-04-20 1991-10-23 MAN Roland Druckmaschinen AG Verfahren und Vorrichtung zur Bestimmung von Passerdifferenzen an Druckbildstellen eines Mehrfarbenoffsetdruckes
EP0554811A1 (de) * 1992-02-07 1993-08-11 Bobst S.A. Einrichtung zum Nachweis von Druckfehlern in einer rotierenden Druckmaschine
DE4321179A1 (de) * 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen einer drucktechnischen Maschine
WO1995011806A1 (en) * 1993-10-28 1995-05-04 Perretta Graphics Corporation System for maintaining ink density
EP0699482A1 (de) * 1990-06-27 1996-03-06 Büro-Produkte GmbH ZWECKFORM Verfahren zum Auftragen von flüssigen, pastösen oder plastischen Substanzen auf ein Substrat
EP0796735A1 (de) * 1996-03-22 1997-09-24 De La Rue Giori S.A. Verfahren zur Druckqualitätskontrolle eines Mehrfarbenbildes
WO1997036749A1 (de) * 1996-04-02 1997-10-09 Koenig & Bauer-Albert Ag Verfahren zur qualitativen beurteilung von bearbeitetem material
EP0802054A2 (de) * 1996-04-15 1997-10-22 Werner Kammann Maschinenfabrik GmbH. Verfahren und Vorrichtung zum Bedrucken von selbsttragenden Einzelobjekten
US5816151A (en) * 1995-09-29 1998-10-06 Goss Graphic Systems, Inc. Device for alignment of images in a control system for a printing press
EP1300243A3 (de) * 2001-10-04 2004-03-03 Maschinenfabrik Wifag Verfahren und Vorrichtung zur Ermittlung der Postition einer bedruckten Papierbahn
DE102008023961A1 (de) * 2008-05-16 2009-11-19 Manroland Ag Verfahren zur Regelung von drucktechnischen Prozessen
DE102016000335A1 (de) * 2016-01-18 2017-07-20 Heidelberger Druckmaschinen Ag Verfahren zur Kompensation auftrags- und maschinenspezifischer Passerungenauigkeiten und Registerfehler

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3811359C2 (de) * 1988-04-02 1994-06-16 Heidelberger Druckmasch Ag Vorrichtung zur Positionierung eines Meßkopfes für Passerabweichungen beim Offsetdruck
JPH04226762A (ja) * 1990-12-28 1992-08-17 Sannichi Insatsu:Kk 印刷管理方法
CN102416760B (zh) 2010-09-24 2016-08-03 海德堡印刷机械股份公司 对版测量元件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322743A1 (fr) * 1975-09-04 1977-04-01 Windmoeller & Hoelscher Dispositif pour l'observation de l'impression dans les machines a imprimer rotatives
US4135664A (en) * 1977-03-04 1979-01-23 Hurletronaltair, Inc. Lateral register control system and method
US4318176A (en) * 1980-03-03 1982-03-02 Hurletronaltair, Inc. Computerized press controls
WO1983000557A1 (en) * 1981-07-29 1983-02-17 Horiguchi, Satoru Method and device for inspecting printed matter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456506A (en) * 1977-10-12 1979-05-07 Sugawara Kenkiyuujiyo Kk Method of detecting printing displacement
JPS54138954A (en) * 1978-04-19 1979-10-27 Dainippon Printing Co Ltd Monitoring device for continuously running sheet member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322743A1 (fr) * 1975-09-04 1977-04-01 Windmoeller & Hoelscher Dispositif pour l'observation de l'impression dans les machines a imprimer rotatives
US4135664A (en) * 1977-03-04 1979-01-23 Hurletronaltair, Inc. Lateral register control system and method
US4318176A (en) * 1980-03-03 1982-03-02 Hurletronaltair, Inc. Computerized press controls
WO1983000557A1 (en) * 1981-07-29 1983-02-17 Horiguchi, Satoru Method and device for inspecting printed matter

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932320A (en) * 1985-03-08 1990-06-12 Michel Brunetti Method and device for registering colors in an offset rotary press
US5125037A (en) * 1987-08-31 1992-06-23 Valtion Teknillinen Tutkimuskeskus Procedure for monitoring printing quality
WO1989001867A1 (en) * 1987-08-31 1989-03-09 Valtion Teknillinen Tutkimuskeskus Procedure for monitoring printing quality
FR2633062A1 (fr) * 1988-06-21 1989-12-22 Dubuit Mach Procede pour le controle de qualite d'une impression, et machine d'impression mettant en oeuvre un tel procede
EP0392814A2 (de) * 1989-04-12 1990-10-17 Tecscan Electronics Ltd Überwachungsapparat für eine Mehrfarbendruckpresse
EP0392814A3 (de) * 1989-04-12 1991-07-17 Tecscan Electronics Ltd Überwachungsapparat für eine Mehrfarbendruckpresse
EP0401691A3 (de) * 1989-06-08 1991-07-24 Bobst S.A. Vorrichtung und Verfahren zum Detektieren von Registermarken in einer Mehrfarbendruckpresse
EP0401691A2 (de) * 1989-06-08 1990-12-12 Bobst S.A. Vorrichtung und Verfahren zum Detektieren von Registermarken in einer Mehrfarbendruckpresse
US5138667A (en) * 1989-06-08 1992-08-11 Bobst Sa Process and device for detecting print registration marks on a web from a multi-color printing press
EP0452700A2 (de) * 1990-04-20 1991-10-23 MAN Roland Druckmaschinen AG Verfahren und Vorrichtung zur Bestimmung von Passerdifferenzen an Druckbildstellen eines Mehrfarbenoffsetdruckes
DE4012608A1 (de) * 1990-04-20 1991-10-24 Roland Man Druckmasch Verfahren und vorrichtung zur bestimmung von passerdifferenzen an druckbildstellen eines mehrfarbenoffsetdruckes
EP0452700A3 (en) * 1990-04-20 1992-11-25 Man Roland Druckmaschinen Ag Method and device for determining compass differences of printing image positions of a multicolour offset printing
US5181257A (en) * 1990-04-20 1993-01-19 Man Roland Druckmaschinen Ag Method and apparatus for determining register differences from a multi-color printed image
EP0699482A1 (de) * 1990-06-27 1996-03-06 Büro-Produkte GmbH ZWECKFORM Verfahren zum Auftragen von flüssigen, pastösen oder plastischen Substanzen auf ein Substrat
EP0554811A1 (de) * 1992-02-07 1993-08-11 Bobst S.A. Einrichtung zum Nachweis von Druckfehlern in einer rotierenden Druckmaschine
DE4321179A1 (de) * 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen einer drucktechnischen Maschine
US6050192A (en) * 1993-06-25 2000-04-18 Heidelberger Druckmaschinen Ag Process and arrangement for controlling or regulating operations carried out by a printing machine
US6119594A (en) * 1993-06-25 2000-09-19 Heidelberger Druckmaschinen Aktiengesellschaft Method for regulating inking during printing operations of a printing press
WO1995011806A1 (en) * 1993-10-28 1995-05-04 Perretta Graphics Corporation System for maintaining ink density
US5816151A (en) * 1995-09-29 1998-10-06 Goss Graphic Systems, Inc. Device for alignment of images in a control system for a printing press
EP0796735A1 (de) * 1996-03-22 1997-09-24 De La Rue Giori S.A. Verfahren zur Druckqualitätskontrolle eines Mehrfarbenbildes
US6301374B1 (en) 1996-03-22 2001-10-09 De La Rue Giori S. A. Method for automatically checking the printing quality of a multicolor image
US6333987B1 (en) 1996-04-02 2001-12-25 Koenig & Bauer Aktiengesellschaft Process for assessing the quality of processed material
WO1997036749A1 (de) * 1996-04-02 1997-10-09 Koenig & Bauer-Albert Ag Verfahren zur qualitativen beurteilung von bearbeitetem material
EP0802054A3 (de) * 1996-04-15 1998-03-11 Werner Kammann Maschinenfabrik GmbH. Verfahren und Vorrichtung zum Bedrucken von selbsttragenden Einzelobjekten
EP0802054A2 (de) * 1996-04-15 1997-10-22 Werner Kammann Maschinenfabrik GmbH. Verfahren und Vorrichtung zum Bedrucken von selbsttragenden Einzelobjekten
EP1300243A3 (de) * 2001-10-04 2004-03-03 Maschinenfabrik Wifag Verfahren und Vorrichtung zur Ermittlung der Postition einer bedruckten Papierbahn
US6779454B2 (en) 2001-10-04 2004-08-24 Maschinenfabrik Wifag Process and device for determining the position of a printed paper web
DE102008023961A1 (de) * 2008-05-16 2009-11-19 Manroland Ag Verfahren zur Regelung von drucktechnischen Prozessen
DE102016000335A1 (de) * 2016-01-18 2017-07-20 Heidelberger Druckmaschinen Ag Verfahren zur Kompensation auftrags- und maschinenspezifischer Passerungenauigkeiten und Registerfehler

Also Published As

Publication number Publication date
EP0127831A3 (en) 1985-11-13
EP0127831B1 (de) 1990-03-14
JPH0469068B2 (de) 1992-11-05
CA1230412A (en) 1987-12-15
DE3481595D1 (de) 1990-04-19
JPS6068947A (ja) 1985-04-19

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